More and more people are aware these days of making eco friendly choices. When it comes to countertops, engineered stone is an incredible environmentally friendly choice to make. Engineered stone is man-made of crushed stone bound together – consisting of 93% crushed quartz and 7% resin. The two most common stones used when producing engineered stones are marble and quartz. Engineered marble is the most common choice for indoor flooring and walls, while the quartz based product is used for kitchen countertops. Engineered stone is also heat and stain resistance; unlike some other natural stones.